World Academy of Science, Engineering and Technology
Published February 25, 2011 | Version 15948
Journal article Open

Study on the Effect of Volume Fraction of Dual Phase Steel to Corrosion Behaviour and Hardness

Description

The objective of this project is to study the corrosion behaviour and hardness based on the presence of martensite in dual phase steel. This study was conducted on six samples of dual phase steel which have different percentage of martensite. A total of 9 specimens were prepared by intercritical annealing process to study the effect of temperature to the formation of martensite. The low carbon steels specimens were heated for 25 minutes in a specified temperature ranging from 7250C to 8250C followed by rapid cooling in water. The measurement of corrosion rate was done by using extrapolation tafel method, while potentiostat was used to control and measured the current produced. This measurement is performed through a system named CMS105. The result shows that a specimen with higher percentage of martensite is likely to corrode faster. Hardness test for each specimen was conducted to compare its hardness with low carbon steel. The results obtained indicate that the specimen hardness is proportional to the amount of martensite in dual phase steel.

Files

15948.pdf

Files (137.6 kB)

Name Size
md5:238c698d2cba0a2004c71533b3af89b8
137.6 kB Preview Download

Additional details

References

  • B.Mintz,"Hot dip galvanising of transformation induced plasticity and other intercritically annealed steels," Int Mater Rev 46 2001, pp. 169- 197
  • Bode R, Meurer M, Schaumann TW, Warnecke W. Selection and use of coated advanced high-strength steels for automotive applications. In: Proceedings of the galvatech conference, Chicago: USA; 2004. p. 107- 18
  • Speich,G.R. "Physical Metallurgy of Dual Phase Steel" in Fundamental Dual Phase Steels. New York: The Metallurgy Society of AIME.1981
  • Messien,P.,Herman,J.C. and Greday,T. "Phase Tranformation and Microstructures of Intercritical Annealed Dual Phase Steels. " in Fundamental of Dual Phase Steels.New york: The Metallurgy Society of AIME. 1981
  • P.E. Repas, "Dual Phase and Cold-Forming Vanadium Steels in the Aotomobile Imustry," Vanitec, Berlin, 1978.
  • R.G. Davies, C.L. Magee, in: T. Davenport (Ed.), Structure and Properties of Dual-Phase Steels, A.I.M.E., New York, 1979.
  • B.K. Jha, Ram Avtar, V. Sagar Dwivedi, Transactions of the Indian Institute of Metals 49/3, 1996, 133
  • G. Thomas, Transactions of the Indian Institute of Metals 49 , 1996,127
  • C. Zhang, D. Cai, B. Liao, T. Zhao, Y. Fan," A study on the dual-phase treatment of weathering steel 09CuPCrNi" Materials Letters 58, 2004, 1524-1529. [10] P.P. Sarkar1, P. Kumar, Manas Kumar Manna, P.C. Chakraborti. "Microstructural influence on the electrochemical corrosion behaviour of dual-phase steels in 3.5% NaCl solution" Materials Letters 59, 2005, 2488 - 2491 [11] L.R. Bhagavathi, G.P. Chaudhari,S.K. Nath. "Mechanical and corrosion behaviour of plain low carbon dual-phase steels." Materials and Design 32, 2011, 433-440. [12] R.G. Davies, "Influence of martensite composition and content on the properties of dual-phase steels," Metall Trans A 9A 1978, pp. 671-679 [13] A.Kumar, S.B. Singh and K.K. Ray, Influence of bainite/martensitecontent on the tensile properties of low carbon dual-phase steels, Mat Sci Eng A 474 2008, pp. 270-282. [14] K.W. Andrews, Journal of the Iron and Steel Institute 203, 1965, 721.